21423420

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{409}}^1$

素因数の和:524

約数の個数: 96

約数和(自身を含む): 67502400

約数和(自身を除く): 46078980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 97, 108, 135, 180, 194, 270, 291, 388, 409, 485, 540, 582, 818, 873, 970, 1164, 1227, 1455, 1636, 1746, 1940, 2045, 2454, 2619, 2910, 3492, 3681, 4090, 4365, 4908, 5238, 5820, 6135, 7362, 8180, 8730, 10476, 11043, 12270, 13095, 14724, 17460, 18405, 22086, 24540, 26190, 36810, 39673, 44172, 52380, 55215, 73620, 79346, 110430, 119019, 158692, 198365, 220860, 238038, 357057, 396730, 476076, 595095, 714114, 793460, 1071171, 1190190, 1428228, 1785285, 2142342, 2380380, 3570570, 4284684, 5355855, 7141140, 10711710, 21423420]

約数ペア:

[(1, 21423420), (2, 10711710), (3, 7141140), (4, 5355855), (5, 4284684), (6, 3570570), (9, 2380380), (10, 2142342), (12, 1785285), (15, 1428228), (18, 1190190), (20, 1071171), (27, 793460), (30, 714114), (36, 595095), (45, 476076), (54, 396730), (60, 357057), (90, 238038), (97, 220860), (108, 198365), (135, 158692), (180, 119019), (194, 110430), (270, 79346), (291, 73620), (388, 55215), (409, 52380), (485, 44172), (540, 39673), (582, 36810), (818, 26190), (873, 24540), (970, 22086), (1164, 18405), (1227, 17460), (1455, 14724), (1636, 13095), (1746, 12270), (1940, 11043), (2045, 10476), (2454, 8730), (2619, 8180), (2910, 7362), (3492, 6135), (3681, 5820), (4090, 5238), (4365, 4908)]