21689550

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{157}}^1\times {\mathrm{307}}^1$

素因数の和:482

約数の個数: 72

約数和(自身を含む): 58834776

約数和(自身を除く): 37145226

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 75, 90, 150, 157, 225, 307, 314, 450, 471, 614, 785, 921, 942, 1413, 1535, 1570, 1842, 2355, 2763, 2826, 3070, 3925, 4605, 4710, 5526, 7065, 7675, 7850, 9210, 11775, 13815, 14130, 15350, 23025, 23550, 27630, 35325, 46050, 48199, 69075, 70650, 96398, 138150, 144597, 240995, 289194, 433791, 481990, 722985, 867582, 1204975, 1445970, 2168955, 2409950, 3614925, 4337910, 7229850, 10844775, 21689550]

約数ペア:

[(1, 21689550), (2, 10844775), (3, 7229850), (5, 4337910), (6, 3614925), (9, 2409950), (10, 2168955), (15, 1445970), (18, 1204975), (25, 867582), (30, 722985), (45, 481990), (50, 433791), (75, 289194), (90, 240995), (150, 144597), (157, 138150), (225, 96398), (307, 70650), (314, 69075), (450, 48199), (471, 46050), (614, 35325), (785, 27630), (921, 23550), (942, 23025), (1413, 15350), (1535, 14130), (1570, 13815), (1842, 11775), (2355, 9210), (2763, 7850), (2826, 7675), (3070, 7065), (3925, 5526), (4605, 4710)]