21721167420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{197933}}^1$

素因数の和:198035

約数の個数: 96

約数和(自身を含む): 63845591040

約数和(自身を除く): 42124423620

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 59, 60, 62, 93, 118, 124, 155, 177, 186, 236, 295, 310, 354, 372, 465, 590, 620, 708, 885, 930, 1180, 1770, 1829, 1860, 3540, 3658, 5487, 7316, 9145, 10974, 18290, 21948, 27435, 36580, 54870, 109740, 197933, 395866, 593799, 791732, 989665, 1187598, 1979330, 2375196, 2968995, 3958660, 5937990, 6135923, 11678047, 11875980, 12271846, 18407769, 23356094, 24543692, 30679615, 35034141, 36815538, 46712188, 58390235, 61359230, 70068282, 73631076, 92038845, 116780470, 122718460, 140136564, 175170705, 184077690, 233560940, 350341410, 362019457, 368155380, 700682820, 724038914, 1086058371, 1448077828, 1810097285, 2172116742, 3620194570, 4344233484, 5430291855, 7240389140, 10860583710, 21721167420]

約数ペア:

[(1, 21721167420), (2, 10860583710), (3, 7240389140), (4, 5430291855), (5, 4344233484), (6, 3620194570), (10, 2172116742), (12, 1810097285), (15, 1448077828), (20, 1086058371), (30, 724038914), (31, 700682820), (59, 368155380), (60, 362019457), (62, 350341410), (93, 233560940), (118, 184077690), (124, 175170705), (155, 140136564), (177, 122718460), (186, 116780470), (236, 92038845), (295, 73631076), (310, 70068282), (354, 61359230), (372, 58390235), (465, 46712188), (590, 36815538), (620, 35034141), (708, 30679615), (885, 24543692), (930, 23356094), (1180, 18407769), (1770, 12271846), (1829, 11875980), (1860, 11678047), (3540, 6135923), (3658, 5937990), (5487, 3958660), (7316, 2968995), (9145, 2375196), (10974, 1979330), (18290, 1187598), (21948, 989665), (27435, 791732), (36580, 593799), (54870, 395866), (109740, 197933)]