21853416

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{787}}^1$

素因数の和:898

約数の個数: 64

約数和(自身を含む): 59572800

約数和(自身を除く): 37719384

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 89, 104, 156, 178, 267, 312, 356, 534, 712, 787, 1068, 1157, 1574, 2136, 2314, 2361, 3148, 3471, 4628, 4722, 6296, 6942, 9256, 9444, 10231, 13884, 18888, 20462, 27768, 30693, 40924, 61386, 70043, 81848, 122772, 140086, 210129, 245544, 280172, 420258, 560344, 840516, 910559, 1681032, 1821118, 2731677, 3642236, 5463354, 7284472, 10926708, 21853416]

約数ペア:

[(1, 21853416), (2, 10926708), (3, 7284472), (4, 5463354), (6, 3642236), (8, 2731677), (12, 1821118), (13, 1681032), (24, 910559), (26, 840516), (39, 560344), (52, 420258), (78, 280172), (89, 245544), (104, 210129), (156, 140086), (178, 122772), (267, 81848), (312, 70043), (356, 61386), (534, 40924), (712, 30693), (787, 27768), (1068, 20462), (1157, 18888), (1574, 13884), (2136, 10231), (2314, 9444), (2361, 9256), (3148, 6942), (3471, 6296), (4628, 4722)]