20821194

素因数分解:

$2^1\times 3^2\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{317}}^1$

素因数の和:455

約数の個数: 48

約数和(自身を含む): 46879560

約数和(自身を除く): 26058366

約数列:

[1, 2, 3, 6, 9, 18, 41, 82, 89, 123, 178, 246, 267, 317, 369, 534, 634, 738, 801, 951, 1602, 1902, 2853, 3649, 5706, 7298, 10947, 12997, 21894, 25994, 28213, 32841, 38991, 56426, 65682, 77982, 84639, 116973, 169278, 233946, 253917, 507834, 1156733, 2313466, 3470199, 6940398, 10410597, 20821194]

約数ペア:

[(1, 20821194), (2, 10410597), (3, 6940398), (6, 3470199), (9, 2313466), (18, 1156733), (41, 507834), (82, 253917), (89, 233946), (123, 169278), (178, 116973), (246, 84639), (267, 77982), (317, 65682), (369, 56426), (534, 38991), (634, 32841), (738, 28213), (801, 25994), (951, 21894), (1602, 12997), (1902, 10947), (2853, 7298), (3649, 5706)]