21873352

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{991}}^1$

素因数の和:1117

約数の個数: 32

約数和(自身を含む): 42854400

約数和(自身を除く): 20981048

約数列:

[1, 2, 4, 8, 31, 62, 89, 124, 178, 248, 356, 712, 991, 1982, 2759, 3964, 5518, 7928, 11036, 22072, 30721, 61442, 88199, 122884, 176398, 245768, 352796, 705592, 2734169, 5468338, 10936676, 21873352]

約数ペア:

[(1, 21873352), (2, 10936676), (4, 5468338), (8, 2734169), (31, 705592), (62, 352796), (89, 245768), (124, 176398), (178, 122884), (248, 88199), (356, 61442), (712, 30721), (991, 22072), (1982, 11036), (2759, 7928), (3964, 5518)]