21589620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{311}}^1$

素因数の和:425

約数の個数: 96

約数和(自身を含む): 66044160

約数和(自身を除く): 44454540

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 89, 130, 156, 178, 195, 260, 267, 311, 356, 390, 445, 534, 622, 780, 890, 933, 1068, 1157, 1244, 1335, 1555, 1780, 1866, 2314, 2670, 3110, 3471, 3732, 4043, 4628, 4665, 5340, 5785, 6220, 6942, 8086, 9330, 11570, 12129, 13884, 16172, 17355, 18660, 20215, 23140, 24258, 27679, 34710, 40430, 48516, 55358, 60645, 69420, 80860, 83037, 110716, 121290, 138395, 166074, 242580, 276790, 332148, 359827, 415185, 553580, 719654, 830370, 1079481, 1439308, 1660740, 1799135, 2158962, 3598270, 4317924, 5397405, 7196540, 10794810, 21589620]

約数ペア:

[(1, 21589620), (2, 10794810), (3, 7196540), (4, 5397405), (5, 4317924), (6, 3598270), (10, 2158962), (12, 1799135), (13, 1660740), (15, 1439308), (20, 1079481), (26, 830370), (30, 719654), (39, 553580), (52, 415185), (60, 359827), (65, 332148), (78, 276790), (89, 242580), (130, 166074), (156, 138395), (178, 121290), (195, 110716), (260, 83037), (267, 80860), (311, 69420), (356, 60645), (390, 55358), (445, 48516), (534, 40430), (622, 34710), (780, 27679), (890, 24258), (933, 23140), (1068, 20215), (1157, 18660), (1244, 17355), (1335, 16172), (1555, 13884), (1780, 12129), (1866, 11570), (2314, 9330), (2670, 8086), (3110, 6942), (3471, 6220), (3732, 5785), (4043, 5340), (4628, 4665)]