21176220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1597}}^1$

素因数の和:1639

約数の個数: 96

約数和(自身を含む): 67652928

約数和(自身を除く): 46476708

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 17, 20, 26, 30, 34, 39, 51, 52, 60, 65, 68, 78, 85, 102, 130, 156, 170, 195, 204, 221, 255, 260, 340, 390, 442, 510, 663, 780, 884, 1020, 1105, 1326, 1597, 2210, 2652, 3194, 3315, 4420, 4791, 6388, 6630, 7985, 9582, 13260, 15970, 19164, 20761, 23955, 27149, 31940, 41522, 47910, 54298, 62283, 81447, 83044, 95820, 103805, 108596, 124566, 135745, 162894, 207610, 249132, 271490, 311415, 325788, 352937, 407235, 415220, 542980, 622830, 705874, 814470, 1058811, 1245660, 1411748, 1628940, 1764685, 2117622, 3529370, 4235244, 5294055, 7058740, 10588110, 21176220]

約数ペア:

[(1, 21176220), (2, 10588110), (3, 7058740), (4, 5294055), (5, 4235244), (6, 3529370), (10, 2117622), (12, 1764685), (13, 1628940), (15, 1411748), (17, 1245660), (20, 1058811), (26, 814470), (30, 705874), (34, 622830), (39, 542980), (51, 415220), (52, 407235), (60, 352937), (65, 325788), (68, 311415), (78, 271490), (85, 249132), (102, 207610), (130, 162894), (156, 135745), (170, 124566), (195, 108596), (204, 103805), (221, 95820), (255, 83044), (260, 81447), (340, 62283), (390, 54298), (442, 47910), (510, 41522), (663, 31940), (780, 27149), (884, 23955), (1020, 20761), (1105, 19164), (1326, 15970), (1597, 13260), (2210, 9582), (2652, 7985), (3194, 6630), (3315, 6388), (4420, 4791)]