21104460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{311}}^1$

素因数の和:368

約数の個数: 144

約数和(自身を含む): 71547840

約数和(自身を除く): 50443380

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 29, 30, 36, 39, 45, 52, 58, 60, 65, 78, 87, 90, 116, 117, 130, 145, 156, 174, 180, 195, 234, 260, 261, 290, 311, 348, 377, 390, 435, 468, 522, 580, 585, 622, 754, 780, 870, 933, 1044, 1131, 1170, 1244, 1305, 1508, 1555, 1740, 1866, 1885, 2262, 2340, 2610, 2799, 3110, 3393, 3732, 3770, 4043, 4524, 4665, 5220, 5598, 5655, 6220, 6786, 7540, 8086, 9019, 9330, 11196, 11310, 12129, 13572, 13995, 16172, 16965, 18038, 18660, 20215, 22620, 24258, 27057, 27990, 33930, 36076, 36387, 40430, 45095, 48516, 54114, 55980, 60645, 67860, 72774, 80860, 81171, 90190, 108228, 117247, 121290, 135285, 145548, 162342, 180380, 181935, 234494, 242580, 270570, 324684, 351741, 363870, 405855, 468988, 541140, 586235, 703482, 727740, 811710, 1055223, 1172470, 1406964, 1623420, 1758705, 2110446, 2344940, 3517410, 4220892, 5276115, 7034820, 10552230, 21104460]

約数ペア:

[(1, 21104460), (2, 10552230), (3, 7034820), (4, 5276115), (5, 4220892), (6, 3517410), (9, 2344940), (10, 2110446), (12, 1758705), (13, 1623420), (15, 1406964), (18, 1172470), (20, 1055223), (26, 811710), (29, 727740), (30, 703482), (36, 586235), (39, 541140), (45, 468988), (52, 405855), (58, 363870), (60, 351741), (65, 324684), (78, 270570), (87, 242580), (90, 234494), (116, 181935), (117, 180380), (130, 162342), (145, 145548), (156, 135285), (174, 121290), (180, 117247), (195, 108228), (234, 90190), (260, 81171), (261, 80860), (290, 72774), (311, 67860), (348, 60645), (377, 55980), (390, 54114), (435, 48516), (468, 45095), (522, 40430), (580, 36387), (585, 36076), (622, 33930), (754, 27990), (780, 27057), (870, 24258), (933, 22620), (1044, 20215), (1131, 18660), (1170, 18038), (1244, 16965), (1305, 16172), (1508, 13995), (1555, 13572), (1740, 12129), (1866, 11310), (1885, 11196), (2262, 9330), (2340, 9019), (2610, 8086), (2799, 7540), (3110, 6786), (3393, 6220), (3732, 5655), (3770, 5598), (4043, 5220), (4524, 4665)]