21973380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{197}}^1$

素因数の和:246

約数の個数: 144

約数和(自身を含む): 73047744

約数和(自身を除く): 51074364

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 13, 15, 20, 22, 26, 30, 33, 39, 44, 52, 55, 60, 65, 66, 78, 110, 130, 132, 143, 156, 165, 169, 195, 197, 220, 260, 286, 330, 338, 390, 394, 429, 507, 572, 591, 660, 676, 715, 780, 788, 845, 858, 985, 1014, 1182, 1430, 1690, 1716, 1859, 1970, 2028, 2145, 2167, 2364, 2535, 2561, 2860, 2955, 3380, 3718, 3940, 4290, 4334, 5070, 5122, 5577, 5910, 6501, 7436, 7683, 8580, 8668, 9295, 10140, 10244, 10835, 11154, 11820, 12805, 13002, 15366, 18590, 21670, 22308, 25610, 26004, 27885, 28171, 30732, 32505, 33293, 37180, 38415, 43340, 51220, 55770, 56342, 65010, 66586, 76830, 84513, 99879, 111540, 112684, 130020, 133172, 140855, 153660, 166465, 169026, 199758, 281710, 332930, 338052, 366223, 399516, 422565, 499395, 563420, 665860, 732446, 845130, 998790, 1098669, 1464892, 1690260, 1831115, 1997580, 2197338, 3662230, 4394676, 5493345, 7324460, 10986690, 21973380]

約数ペア:

[(1, 21973380), (2, 10986690), (3, 7324460), (4, 5493345), (5, 4394676), (6, 3662230), (10, 2197338), (11, 1997580), (12, 1831115), (13, 1690260), (15, 1464892), (20, 1098669), (22, 998790), (26, 845130), (30, 732446), (33, 665860), (39, 563420), (44, 499395), (52, 422565), (55, 399516), (60, 366223), (65, 338052), (66, 332930), (78, 281710), (110, 199758), (130, 169026), (132, 166465), (143, 153660), (156, 140855), (165, 133172), (169, 130020), (195, 112684), (197, 111540), (220, 99879), (260, 84513), (286, 76830), (330, 66586), (338, 65010), (390, 56342), (394, 55770), (429, 51220), (507, 43340), (572, 38415), (591, 37180), (660, 33293), (676, 32505), (715, 30732), (780, 28171), (788, 27885), (845, 26004), (858, 25610), (985, 22308), (1014, 21670), (1182, 18590), (1430, 15366), (1690, 13002), (1716, 12805), (1859, 11820), (1970, 11154), (2028, 10835), (2145, 10244), (2167, 10140), (2364, 9295), (2535, 8668), (2561, 8580), (2860, 7683), (2955, 7436), (3380, 6501), (3718, 5910), (3940, 5577), (4290, 5122), (4334, 5070)]