21878944048

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{1181879}}^1$

素因数の和:1181989

約数の個数: 40

約数和(自身を含む): 46164232800

約数和(自身を除く): 24285288752

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 89, 104, 178, 208, 356, 712, 1157, 1424, 2314, 4628, 9256, 18512, 1181879, 2363758, 4727516, 9455032, 15364427, 18910064, 30728854, 61457708, 105187231, 122915416, 210374462, 245830832, 420748924, 841497848, 1367434003, 1682995696, 2734868006, 5469736012, 10939472024, 21878944048]

約数ペア:

[(1, 21878944048), (2, 10939472024), (4, 5469736012), (8, 2734868006), (13, 1682995696), (16, 1367434003), (26, 841497848), (52, 420748924), (89, 245830832), (104, 210374462), (178, 122915416), (208, 105187231), (356, 61457708), (712, 30728854), (1157, 18910064), (1424, 15364427), (2314, 9455032), (4628, 4727516), (9256, 2363758), (18512, 1181879)]