21515736

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{239}}^1$

素因数の和:301

約数の個数: 96

約数和(自身を含む): 61286400

約数和(自身を除く): 39770664

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 31, 33, 44, 62, 66, 88, 93, 121, 124, 132, 186, 239, 242, 248, 264, 341, 363, 372, 478, 484, 682, 717, 726, 744, 956, 968, 1023, 1364, 1434, 1452, 1912, 2046, 2629, 2728, 2868, 2904, 3751, 4092, 5258, 5736, 7409, 7502, 7887, 8184, 10516, 11253, 14818, 15004, 15774, 21032, 22227, 22506, 28919, 29636, 30008, 31548, 44454, 45012, 57838, 59272, 63096, 81499, 86757, 88908, 90024, 115676, 162998, 173514, 177816, 231352, 244497, 325996, 347028, 488994, 651992, 694056, 896489, 977988, 1792978, 1955976, 2689467, 3585956, 5378934, 7171912, 10757868, 21515736]

約数ペア:

[(1, 21515736), (2, 10757868), (3, 7171912), (4, 5378934), (6, 3585956), (8, 2689467), (11, 1955976), (12, 1792978), (22, 977988), (24, 896489), (31, 694056), (33, 651992), (44, 488994), (62, 347028), (66, 325996), (88, 244497), (93, 231352), (121, 177816), (124, 173514), (132, 162998), (186, 115676), (239, 90024), (242, 88908), (248, 86757), (264, 81499), (341, 63096), (363, 59272), (372, 57838), (478, 45012), (484, 44454), (682, 31548), (717, 30008), (726, 29636), (744, 28919), (956, 22506), (968, 22227), (1023, 21032), (1364, 15774), (1434, 15004), (1452, 14818), (1912, 11253), (2046, 10516), (2629, 8184), (2728, 7887), (2868, 7502), (2904, 7409), (3751, 5736), (4092, 5258)]