21315480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{7723}}^1$

素因数の和:7760

約数の個数: 64

約数和(自身を含む): 66735360

約数和(自身を除く): 45419880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 138, 184, 230, 276, 345, 460, 552, 690, 920, 1380, 2760, 7723, 15446, 23169, 30892, 38615, 46338, 61784, 77230, 92676, 115845, 154460, 177629, 185352, 231690, 308920, 355258, 463380, 532887, 710516, 888145, 926760, 1065774, 1421032, 1776290, 2131548, 2664435, 3552580, 4263096, 5328870, 7105160, 10657740, 21315480]

約数ペア:

[(1, 21315480), (2, 10657740), (3, 7105160), (4, 5328870), (5, 4263096), (6, 3552580), (8, 2664435), (10, 2131548), (12, 1776290), (15, 1421032), (20, 1065774), (23, 926760), (24, 888145), (30, 710516), (40, 532887), (46, 463380), (60, 355258), (69, 308920), (92, 231690), (115, 185352), (120, 177629), (138, 154460), (184, 115845), (230, 92676), (276, 77230), (345, 61784), (460, 46338), (552, 38615), (690, 30892), (920, 23169), (1380, 15446), (2760, 7723)]