21527220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{193}}^1$

素因数の和:242

約数の個数: 144

約数和(自身を含む): 71572032

約数和(自身を除く): 50044812

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, 193, 195, 220, 260, 286, 330, 338, 386, 390, 429, 507, 572, 579, 660, 676, 715, 772, 780, 845, 858, 965, 1014, 1158, 1430, 1690, 1716, 1859, 1930, 2028, 2123, 2145, 2316, 2509, 2535, 2860, 2895, 3380, 3718, 3860, 4246, 4290, 5018, 5070, 5577, 5790, 6369, 7436, 7527, 8492, 8580, 9295, 10036, 10140, 10615, 11154, 11580, 12545, 12738, 15054, 18590, 21230, 22308, 25090, 25476, 27599, 27885, 30108, 31845, 32617, 37180, 37635, 42460, 50180, 55198, 55770, 63690, 65234, 75270, 82797, 97851, 110396, 111540, 127380, 130468, 137995, 150540, 163085, 165594, 195702, 275990, 326170, 331188, 358787, 391404, 413985, 489255, 551980, 652340, 717574, 827970, 978510, 1076361, 1435148, 1655940, 1793935, 1957020, 2152722, 3587870, 4305444, 5381805, 7175740, 10763610, 21527220]

約数ペア:

[(1, 21527220), (2, 10763610), (3, 7175740), (4, 5381805), (5, 4305444), (6, 3587870), (10, 2152722), (11, 1957020), (12, 1793935), (13, 1655940), (15, 1435148), (20, 1076361), (22, 978510), (26, 827970), (30, 717574), (33, 652340), (39, 551980), (44, 489255), (52, 413985), (55, 391404), (60, 358787), (65, 331188), (66, 326170), (78, 275990), (110, 195702), (130, 165594), (132, 163085), (143, 150540), (156, 137995), (165, 130468), (169, 127380), (193, 111540), (195, 110396), (220, 97851), (260, 82797), (286, 75270), (330, 65234), (338, 63690), (386, 55770), (390, 55198), (429, 50180), (507, 42460), (572, 37635), (579, 37180), (660, 32617), (676, 31845), (715, 30108), (772, 27885), (780, 27599), (845, 25476), (858, 25090), (965, 22308), (1014, 21230), (1158, 18590), (1430, 15054), (1690, 12738), (1716, 12545), (1859, 11580), (1930, 11154), (2028, 10615), (2123, 10140), (2145, 10036), (2316, 9295), (2509, 8580), (2535, 8492), (2860, 7527), (2895, 7436), (3380, 6369), (3718, 5790), (3860, 5577), (4246, 5070), (4290, 5018)]