21931696

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{977}}^1$

素因数の和:1069

約数の個数: 40

約数和(自身を含む): 45113184

約数和(自身を除く): 23181488

約数列:

[1, 2, 4, 8, 16, 23, 46, 61, 92, 122, 184, 244, 368, 488, 976, 977, 1403, 1954, 2806, 3908, 5612, 7816, 11224, 15632, 22448, 22471, 44942, 59597, 89884, 119194, 179768, 238388, 359536, 476776, 953552, 1370731, 2741462, 5482924, 10965848, 21931696]

約数ペア:

[(1, 21931696), (2, 10965848), (4, 5482924), (8, 2741462), (16, 1370731), (23, 953552), (46, 476776), (61, 359536), (92, 238388), (122, 179768), (184, 119194), (244, 89884), (368, 59597), (488, 44942), (976, 22471), (977, 22448), (1403, 15632), (1954, 11224), (2806, 7816), (3908, 5612)]