21959730

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^2$

素因数の和:300

約数の個数: 72

約数和(自身を含む): 61939332

約数和(自身を除く): 39979602

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 65, 78, 90, 117, 130, 137, 195, 234, 274, 390, 411, 585, 685, 822, 1170, 1233, 1370, 1781, 2055, 2466, 3562, 4110, 5343, 6165, 8905, 10686, 12330, 16029, 17810, 18769, 26715, 32058, 37538, 53430, 56307, 80145, 93845, 112614, 160290, 168921, 187690, 243997, 281535, 337842, 487994, 563070, 731991, 844605, 1219985, 1463982, 1689210, 2195973, 2439970, 3659955, 4391946, 7319910, 10979865, 21959730]

約数ペア:

[(1, 21959730), (2, 10979865), (3, 7319910), (5, 4391946), (6, 3659955), (9, 2439970), (10, 2195973), (13, 1689210), (15, 1463982), (18, 1219985), (26, 844605), (30, 731991), (39, 563070), (45, 487994), (65, 337842), (78, 281535), (90, 243997), (117, 187690), (130, 168921), (137, 160290), (195, 112614), (234, 93845), (274, 80145), (390, 56307), (411, 53430), (585, 37538), (685, 32058), (822, 26715), (1170, 18769), (1233, 17810), (1370, 16029), (1781, 12330), (2055, 10686), (2466, 8905), (3562, 6165), (4110, 5343)]