21443630

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{313}}^1$

素因数の和:381

約数の個数: 64

約数和(自身を含む): 45577728

約数和(自身を除く): 24134098

約数列:

[1, 2, 5, 10, 13, 17, 26, 31, 34, 62, 65, 85, 130, 155, 170, 221, 310, 313, 403, 442, 527, 626, 806, 1054, 1105, 1565, 2015, 2210, 2635, 3130, 4030, 4069, 5270, 5321, 6851, 8138, 9703, 10642, 13702, 19406, 20345, 26605, 34255, 40690, 48515, 53210, 68510, 69173, 97030, 126139, 138346, 164951, 252278, 329902, 345865, 630695, 691730, 824755, 1261390, 1649510, 2144363, 4288726, 10721815, 21443630]

約数ペア:

[(1, 21443630), (2, 10721815), (5, 4288726), (10, 2144363), (13, 1649510), (17, 1261390), (26, 824755), (31, 691730), (34, 630695), (62, 345865), (65, 329902), (85, 252278), (130, 164951), (155, 138346), (170, 126139), (221, 97030), (310, 69173), (313, 68510), (403, 53210), (442, 48515), (527, 40690), (626, 34255), (806, 26605), (1054, 20345), (1105, 19406), (1565, 13702), (2015, 10642), (2210, 9703), (2635, 8138), (3130, 6851), (4030, 5321), (4069, 5270)]