21477664

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3037}}^1$

素因数の和:3077

約数の個数: 48

約数和(自身を含む): 48231288

約数和(自身を除く): 26753624

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 32, 34, 52, 68, 104, 136, 208, 221, 272, 416, 442, 544, 884, 1768, 3037, 3536, 6074, 7072, 12148, 24296, 39481, 48592, 51629, 78962, 97184, 103258, 157924, 206516, 315848, 413032, 631696, 671177, 826064, 1263392, 1342354, 1652128, 2684708, 5369416, 10738832, 21477664]

約数ペア:

[(1, 21477664), (2, 10738832), (4, 5369416), (8, 2684708), (13, 1652128), (16, 1342354), (17, 1263392), (26, 826064), (32, 671177), (34, 631696), (52, 413032), (68, 315848), (104, 206516), (136, 157924), (208, 103258), (221, 97184), (272, 78962), (416, 51629), (442, 48592), (544, 39481), (884, 24296), (1768, 12148), (3037, 7072), (3536, 6074)]