19828844

素因数分解:

$2^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:282

約数の個数: 48

約数和(自身を含む): 41025600

約数和(自身を除く): 21196756

約数列:

[1, 2, 4, 7, 14, 28, 73, 89, 109, 146, 178, 218, 292, 356, 436, 511, 623, 763, 1022, 1246, 1526, 2044, 2492, 3052, 6497, 7957, 9701, 12994, 15914, 19402, 25988, 31828, 38804, 45479, 55699, 67907, 90958, 111398, 135814, 181916, 222796, 271628, 708173, 1416346, 2832692, 4957211, 9914422, 19828844]

約数ペア:

[(1, 19828844), (2, 9914422), (4, 4957211), (7, 2832692), (14, 1416346), (28, 708173), (73, 271628), (89, 222796), (109, 181916), (146, 135814), (178, 111398), (218, 90958), (292, 67907), (356, 55699), (436, 45479), (511, 38804), (623, 31828), (763, 25988), (1022, 19402), (1246, 15914), (1526, 12994), (2044, 9701), (2492, 7957), (3052, 6497)]