21996236

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{179}}^1\times {\mathrm{991}}^1$

素因数の和:1205

約数の個数: 24

約数和(自身を含む): 39997440

約数和(自身を除く): 18001204

約数列:

[1, 2, 4, 31, 62, 124, 179, 358, 716, 991, 1982, 3964, 5549, 11098, 22196, 30721, 61442, 122884, 177389, 354778, 709556, 5499059, 10998118, 21996236]

約数ペア:

[(1, 21996236), (2, 10998118), (4, 5499059), (31, 709556), (62, 354778), (124, 177389), (179, 122884), (358, 61442), (716, 30721), (991, 22196), (1982, 11098), (3964, 5549)]