21937460

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{863}}^1$

素因数の和:944

約数の個数: 48

約数和(自身を含む): 48771072

約数和(自身を除く): 26833612

約数列:

[1, 2, 4, 5, 10, 20, 31, 41, 62, 82, 124, 155, 164, 205, 310, 410, 620, 820, 863, 1271, 1726, 2542, 3452, 4315, 5084, 6355, 8630, 12710, 17260, 25420, 26753, 35383, 53506, 70766, 107012, 133765, 141532, 176915, 267530, 353830, 535060, 707660, 1096873, 2193746, 4387492, 5484365, 10968730, 21937460]

約数ペア:

[(1, 21937460), (2, 10968730), (4, 5484365), (5, 4387492), (10, 2193746), (20, 1096873), (31, 707660), (41, 535060), (62, 353830), (82, 267530), (124, 176915), (155, 141532), (164, 133765), (205, 107012), (310, 70766), (410, 53506), (620, 35383), (820, 26753), (863, 25420), (1271, 17260), (1726, 12710), (2542, 8630), (3452, 6355), (4315, 5084)]