20926904

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^2$

素因数の和:184

約数の個数: 48

約数和(自身を含む): 43126200

約数和(自身を除く): 22199296

約数列:

[1, 2, 4, 8, 19, 37, 38, 61, 74, 76, 122, 148, 152, 244, 296, 488, 703, 1159, 1406, 2257, 2318, 2812, 3721, 4514, 4636, 5624, 7442, 9028, 9272, 14884, 18056, 29768, 42883, 70699, 85766, 137677, 141398, 171532, 275354, 282796, 343064, 550708, 565592, 1101416, 2615863, 5231726, 10463452, 20926904]

約数ペア:

[(1, 20926904), (2, 10463452), (4, 5231726), (8, 2615863), (19, 1101416), (37, 565592), (38, 550708), (61, 343064), (74, 282796), (76, 275354), (122, 171532), (148, 141398), (152, 137677), (244, 85766), (296, 70699), (488, 42883), (703, 29768), (1159, 18056), (1406, 14884), (2257, 9272), (2318, 9028), (2812, 7442), (3721, 5624), (4514, 4636)]