20571837405

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{773}}^1\times {\mathrm{1327}}^1$

素因数の和:2306

約数の個数: 64

約数和(自身を含む): 37891473408

約数和(自身を除く): 17319636003

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 191, 573, 773, 955, 1327, 1337, 2319, 2865, 3865, 3981, 4011, 5411, 6635, 6685, 9289, 11595, 16233, 19905, 20055, 27055, 27867, 46445, 81165, 139335, 147643, 253457, 442929, 738215, 760371, 1025771, 1033501, 1267285, 1774199, 2214645, 3077313, 3100503, 3801855, 5128855, 5167505, 5322597, 7180397, 8870995, 15386565, 15502515, 21541191, 26612985, 35901985, 107705955, 195922261, 587766783, 979611305, 1371455827, 2938833915, 4114367481, 6857279135, 20571837405]

約数ペア:

[(1, 20571837405), (3, 6857279135), (5, 4114367481), (7, 2938833915), (15, 1371455827), (21, 979611305), (35, 587766783), (105, 195922261), (191, 107705955), (573, 35901985), (773, 26612985), (955, 21541191), (1327, 15502515), (1337, 15386565), (2319, 8870995), (2865, 7180397), (3865, 5322597), (3981, 5167505), (4011, 5128855), (5411, 3801855), (6635, 3100503), (6685, 3077313), (9289, 2214645), (11595, 1774199), (16233, 1267285), (19905, 1033501), (20055, 1025771), (27055, 760371), (27867, 738215), (46445, 442929), (81165, 253457), (139335, 147643)]