21222436

素因数分解:

$2^2\times {\mathrm{83}}^1\times {\mathrm{97}}^1\times {\mathrm{659}}^1$

素因数の和:843

約数の個数: 24

約数和(自身を含む): 38031840

約数和(自身を除く): 16809404

約数列:

[1, 2, 4, 83, 97, 166, 194, 332, 388, 659, 1318, 2636, 8051, 16102, 32204, 54697, 63923, 109394, 127846, 218788, 255692, 5305609, 10611218, 21222436]

約数ペア:

[(1, 21222436), (2, 10611218), (4, 5305609), (83, 255692), (97, 218788), (166, 127846), (194, 109394), (332, 63923), (388, 54697), (659, 32204), (1318, 16102), (2636, 8051)]