21558810

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1$

素因数の和:232

約数の個数: 128

約数和(自身を含む): 65318400

約数和(自身を除く): 43759590

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 30, 35, 39, 42, 53, 65, 70, 78, 91, 105, 106, 130, 149, 159, 182, 195, 210, 265, 273, 298, 318, 371, 390, 447, 455, 530, 546, 689, 742, 745, 795, 894, 910, 1043, 1113, 1365, 1378, 1490, 1590, 1855, 1937, 2067, 2086, 2226, 2235, 2730, 3129, 3445, 3710, 3874, 4134, 4470, 4823, 5215, 5565, 5811, 6258, 6890, 7897, 9646, 9685, 10335, 10430, 11130, 11622, 13559, 14469, 15645, 15794, 19370, 20670, 23691, 24115, 27118, 28938, 29055, 31290, 39485, 40677, 47382, 48230, 55279, 58110, 67795, 72345, 78970, 81354, 102661, 110558, 118455, 135590, 144690, 165837, 203385, 205322, 236910, 276395, 307983, 331674, 406770, 513305, 552790, 615966, 718627, 829185, 1026610, 1437254, 1539915, 1658370, 2155881, 3079830, 3593135, 4311762, 7186270, 10779405, 21558810]

約数ペア:

[(1, 21558810), (2, 10779405), (3, 7186270), (5, 4311762), (6, 3593135), (7, 3079830), (10, 2155881), (13, 1658370), (14, 1539915), (15, 1437254), (21, 1026610), (26, 829185), (30, 718627), (35, 615966), (39, 552790), (42, 513305), (53, 406770), (65, 331674), (70, 307983), (78, 276395), (91, 236910), (105, 205322), (106, 203385), (130, 165837), (149, 144690), (159, 135590), (182, 118455), (195, 110558), (210, 102661), (265, 81354), (273, 78970), (298, 72345), (318, 67795), (371, 58110), (390, 55279), (447, 48230), (455, 47382), (530, 40677), (546, 39485), (689, 31290), (742, 29055), (745, 28938), (795, 27118), (894, 24115), (910, 23691), (1043, 20670), (1113, 19370), (1365, 15794), (1378, 15645), (1490, 14469), (1590, 13559), (1855, 11622), (1937, 11130), (2067, 10430), (2086, 10335), (2226, 9685), (2235, 9646), (2730, 7897), (3129, 6890), (3445, 6258), (3710, 5811), (3874, 5565), (4134, 5215), (4470, 4823)]