21367450

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{463}}^1$

素因数の和:559

約数の個数: 48

約数和(自身を含む): 43497216

約数和(自身を除く): 22129766

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 71, 130, 142, 325, 355, 463, 650, 710, 923, 926, 1775, 1846, 2315, 3550, 4615, 4630, 6019, 9230, 11575, 12038, 23075, 23150, 30095, 32873, 46150, 60190, 65746, 150475, 164365, 300950, 328730, 427349, 821825, 854698, 1643650, 2136745, 4273490, 10683725, 21367450]

約数ペア:

[(1, 21367450), (2, 10683725), (5, 4273490), (10, 2136745), (13, 1643650), (25, 854698), (26, 821825), (50, 427349), (65, 328730), (71, 300950), (130, 164365), (142, 150475), (325, 65746), (355, 60190), (463, 46150), (650, 32873), (710, 30095), (923, 23150), (926, 23075), (1775, 12038), (1846, 11575), (2315, 9230), (3550, 6019), (4615, 4630)]