21872732

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{223}}^1$

素因数の和:378

約数の個数: 48

約数和(自身を含む): 45760512

約数和(自身を除く): 23887780

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 113, 124, 217, 223, 226, 434, 446, 452, 791, 868, 892, 1561, 1582, 3122, 3164, 3503, 6244, 6913, 7006, 13826, 14012, 24521, 25199, 27652, 48391, 49042, 50398, 96782, 98084, 100796, 176393, 193564, 352786, 705572, 781169, 1562338, 3124676, 5468183, 10936366, 21872732]

約数ペア:

[(1, 21872732), (2, 10936366), (4, 5468183), (7, 3124676), (14, 1562338), (28, 781169), (31, 705572), (62, 352786), (113, 193564), (124, 176393), (217, 100796), (223, 98084), (226, 96782), (434, 50398), (446, 49042), (452, 48391), (791, 27652), (868, 25199), (892, 24521), (1561, 14012), (1582, 13826), (3122, 7006), (3164, 6913), (3503, 6244)]