21642712

素因数分解:

$2^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1$

素因数の和:201

約数の個数: 96

約数和(自身を含む): 52859520

約数和(自身を除く): 31216808

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 31, 49, 52, 56, 62, 91, 98, 104, 124, 137, 182, 196, 217, 248, 274, 364, 392, 403, 434, 548, 637, 728, 806, 868, 959, 1096, 1274, 1519, 1612, 1736, 1781, 1918, 2548, 2821, 3038, 3224, 3562, 3836, 4247, 5096, 5642, 6076, 6713, 7124, 7672, 8494, 11284, 12152, 12467, 13426, 14248, 16988, 19747, 22568, 24934, 26852, 29729, 33976, 39494, 49868, 53704, 55211, 59458, 78988, 87269, 99736, 110422, 118916, 157976, 174538, 208103, 220844, 237832, 349076, 386477, 416206, 441688, 698152, 772954, 832412, 1545908, 1664824, 2705339, 3091816, 5410678, 10821356, 21642712]

約数ペア:

[(1, 21642712), (2, 10821356), (4, 5410678), (7, 3091816), (8, 2705339), (13, 1664824), (14, 1545908), (26, 832412), (28, 772954), (31, 698152), (49, 441688), (52, 416206), (56, 386477), (62, 349076), (91, 237832), (98, 220844), (104, 208103), (124, 174538), (137, 157976), (182, 118916), (196, 110422), (217, 99736), (248, 87269), (274, 78988), (364, 59458), (392, 55211), (403, 53704), (434, 49868), (548, 39494), (637, 33976), (728, 29729), (806, 26852), (868, 24934), (959, 22568), (1096, 19747), (1274, 16988), (1519, 14248), (1612, 13426), (1736, 12467), (1781, 12152), (1918, 11284), (2548, 8494), (2821, 7672), (3038, 7124), (3224, 6713), (3562, 6076), (3836, 5642), (4247, 5096)]