21472660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{467}}^1$

素因数の和:517

約数の個数: 72

約数和(自身を含む): 52284960

約数和(自身を除く): 30812300

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 121, 190, 209, 220, 242, 380, 418, 467, 484, 605, 836, 934, 1045, 1210, 1868, 2090, 2299, 2335, 2420, 4180, 4598, 4670, 5137, 8873, 9196, 9340, 10274, 11495, 17746, 20548, 22990, 25685, 35492, 44365, 45980, 51370, 56507, 88730, 97603, 102740, 113014, 177460, 195206, 226028, 282535, 390412, 488015, 565070, 976030, 1073633, 1130140, 1952060, 2147266, 4294532, 5368165, 10736330, 21472660]

約数ペア:

[(1, 21472660), (2, 10736330), (4, 5368165), (5, 4294532), (10, 2147266), (11, 1952060), (19, 1130140), (20, 1073633), (22, 976030), (38, 565070), (44, 488015), (55, 390412), (76, 282535), (95, 226028), (110, 195206), (121, 177460), (190, 113014), (209, 102740), (220, 97603), (242, 88730), (380, 56507), (418, 51370), (467, 45980), (484, 44365), (605, 35492), (836, 25685), (934, 22990), (1045, 20548), (1210, 17746), (1868, 11495), (2090, 10274), (2299, 9340), (2335, 9196), (2420, 8873), (4180, 5137), (4598, 4670)]