21324220

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{151}}^1\times {\mathrm{307}}^1$

素因数の和:490

約数の個数: 48

約数和(自身を含む): 47190528

約数和(自身を除く): 25866308

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 151, 230, 302, 307, 460, 604, 614, 755, 1228, 1510, 1535, 3020, 3070, 3473, 6140, 6946, 7061, 13892, 14122, 17365, 28244, 34730, 35305, 46357, 69460, 70610, 92714, 141220, 185428, 231785, 463570, 927140, 1066211, 2132422, 4264844, 5331055, 10662110, 21324220]

約数ペア:

[(1, 21324220), (2, 10662110), (4, 5331055), (5, 4264844), (10, 2132422), (20, 1066211), (23, 927140), (46, 463570), (92, 231785), (115, 185428), (151, 141220), (230, 92714), (302, 70610), (307, 69460), (460, 46357), (604, 35305), (614, 34730), (755, 28244), (1228, 17365), (1510, 14122), (1535, 13892), (3020, 7061), (3070, 6946), (3473, 6140)]