20853826504

素因数分解:

$2^3\times 7^3\times {\mathrm{19}}^1\times {\mathrm{399989}}^1$

素因数の和:400035

約数の個数: 64

約数和(自身を含む): 47998800000

約数和(自身を除く): 27144973496

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 49, 56, 76, 98, 133, 152, 196, 266, 343, 392, 532, 686, 931, 1064, 1372, 1862, 2744, 3724, 6517, 7448, 13034, 26068, 52136, 399989, 799978, 1599956, 2799923, 3199912, 5599846, 7599791, 11199692, 15199582, 19599461, 22399384, 30399164, 39198922, 53198537, 60798328, 78397844, 106397074, 137196227, 156795688, 212794148, 274392454, 372389759, 425588296, 548784908, 744779518, 1097569816, 1489559036, 2606728313, 2979118072, 5213456626, 10426913252, 20853826504]

約数ペア:

[(1, 20853826504), (2, 10426913252), (4, 5213456626), (7, 2979118072), (8, 2606728313), (14, 1489559036), (19, 1097569816), (28, 744779518), (38, 548784908), (49, 425588296), (56, 372389759), (76, 274392454), (98, 212794148), (133, 156795688), (152, 137196227), (196, 106397074), (266, 78397844), (343, 60798328), (392, 53198537), (532, 39198922), (686, 30399164), (931, 22399384), (1064, 19599461), (1372, 15199582), (1862, 11199692), (2744, 7599791), (3724, 5599846), (6517, 3199912), (7448, 2799923), (13034, 1599956), (26068, 799978), (52136, 399989)]