21437910

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{251}}^1$

素因数の和:350

約数の個数: 96

約数和(自身を含む): 61090848

約数和(自身を除く): 39652938

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 65, 73, 78, 90, 117, 130, 146, 195, 219, 234, 251, 365, 390, 438, 502, 585, 657, 730, 753, 949, 1095, 1170, 1255, 1314, 1506, 1898, 2190, 2259, 2510, 2847, 3263, 3285, 3765, 4518, 4745, 5694, 6526, 6570, 7530, 8541, 9490, 9789, 11295, 14235, 16315, 17082, 18323, 19578, 22590, 28470, 29367, 32630, 36646, 42705, 48945, 54969, 58734, 85410, 91615, 97890, 109938, 146835, 164907, 183230, 238199, 274845, 293670, 329814, 476398, 549690, 714597, 824535, 1190995, 1429194, 1649070, 2143791, 2381990, 3572985, 4287582, 7145970, 10718955, 21437910]

約数ペア:

[(1, 21437910), (2, 10718955), (3, 7145970), (5, 4287582), (6, 3572985), (9, 2381990), (10, 2143791), (13, 1649070), (15, 1429194), (18, 1190995), (26, 824535), (30, 714597), (39, 549690), (45, 476398), (65, 329814), (73, 293670), (78, 274845), (90, 238199), (117, 183230), (130, 164907), (146, 146835), (195, 109938), (219, 97890), (234, 91615), (251, 85410), (365, 58734), (390, 54969), (438, 48945), (502, 42705), (585, 36646), (657, 32630), (730, 29367), (753, 28470), (949, 22590), (1095, 19578), (1170, 18323), (1255, 17082), (1314, 16315), (1506, 14235), (1898, 11295), (2190, 9789), (2259, 9490), (2510, 8541), (2847, 7530), (3263, 6570), (3285, 6526), (3765, 5694), (4518, 4745)]