21419152

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{373}}^1$

素因数の和:515

約数の個数: 40

約数和(自身を含む): 43176056

約数和(自身を除く): 21756904

約数列:

[1, 2, 4, 8, 16, 37, 74, 97, 148, 194, 296, 373, 388, 592, 746, 776, 1492, 1552, 2984, 3589, 5968, 7178, 13801, 14356, 27602, 28712, 36181, 55204, 57424, 72362, 110408, 144724, 220816, 289448, 578896, 1338697, 2677394, 5354788, 10709576, 21419152]

約数ペア:

[(1, 21419152), (2, 10709576), (4, 5354788), (8, 2677394), (16, 1338697), (37, 578896), (74, 289448), (97, 220816), (148, 144724), (194, 110408), (296, 72362), (373, 57424), (388, 55204), (592, 36181), (746, 28712), (776, 27602), (1492, 14356), (1552, 13801), (2984, 7178), (3589, 5968)]