21296730

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{269}}^1$

素因数の和:328

約数の個数: 128

約数和(自身を含む): 65318400

約数和(自身を除く): 44021670

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 29, 30, 35, 39, 42, 58, 65, 70, 78, 87, 91, 105, 130, 145, 174, 182, 195, 203, 210, 269, 273, 290, 377, 390, 406, 435, 455, 538, 546, 609, 754, 807, 870, 910, 1015, 1131, 1218, 1345, 1365, 1614, 1883, 1885, 2030, 2262, 2639, 2690, 2730, 3045, 3497, 3766, 3770, 4035, 5278, 5649, 5655, 6090, 6994, 7801, 7917, 8070, 9415, 10491, 11298, 11310, 13195, 15602, 15834, 17485, 18830, 20982, 23403, 24479, 26390, 28245, 34970, 39005, 39585, 46806, 48958, 52455, 54607, 56490, 73437, 78010, 79170, 101413, 104910, 109214, 117015, 122395, 146874, 163821, 202826, 234030, 244790, 273035, 304239, 327642, 367185, 507065, 546070, 608478, 709891, 734370, 819105, 1014130, 1419782, 1521195, 1638210, 2129673, 3042390, 3549455, 4259346, 7098910, 10648365, 21296730]

約数ペア:

[(1, 21296730), (2, 10648365), (3, 7098910), (5, 4259346), (6, 3549455), (7, 3042390), (10, 2129673), (13, 1638210), (14, 1521195), (15, 1419782), (21, 1014130), (26, 819105), (29, 734370), (30, 709891), (35, 608478), (39, 546070), (42, 507065), (58, 367185), (65, 327642), (70, 304239), (78, 273035), (87, 244790), (91, 234030), (105, 202826), (130, 163821), (145, 146874), (174, 122395), (182, 117015), (195, 109214), (203, 104910), (210, 101413), (269, 79170), (273, 78010), (290, 73437), (377, 56490), (390, 54607), (406, 52455), (435, 48958), (455, 46806), (538, 39585), (546, 39005), (609, 34970), (754, 28245), (807, 26390), (870, 24479), (910, 23403), (1015, 20982), (1131, 18830), (1218, 17485), (1345, 15834), (1365, 15602), (1614, 13195), (1883, 11310), (1885, 11298), (2030, 10491), (2262, 9415), (2639, 8070), (2690, 7917), (2730, 7801), (3045, 6994), (3497, 6090), (3766, 5655), (3770, 5649), (4035, 5278)]