21169354750

素因数分解:

$2^1\times 5^3\times {\mathrm{29}}^1\times {\mathrm{647}}^1\times {\mathrm{4513}}^1$

素因数の和:5206

約数の個数: 64

約数和(自身を含む): 41068010880

約数和(自身を除く): 19898656130

約数列:

[1, 2, 5, 10, 25, 29, 50, 58, 125, 145, 250, 290, 647, 725, 1294, 1450, 3235, 3625, 4513, 6470, 7250, 9026, 16175, 18763, 22565, 32350, 37526, 45130, 80875, 93815, 112825, 130877, 161750, 187630, 225650, 261754, 469075, 564125, 654385, 938150, 1128250, 1308770, 2345375, 2919911, 3271925, 4690750, 5839822, 6543850, 14599555, 16359625, 29199110, 32719250, 72997775, 84677419, 145995550, 169354838, 364988875, 423387095, 729977750, 846774190, 2116935475, 4233870950, 10584677375, 21169354750]

約数ペア:

[(1, 21169354750), (2, 10584677375), (5, 4233870950), (10, 2116935475), (25, 846774190), (29, 729977750), (50, 423387095), (58, 364988875), (125, 169354838), (145, 145995550), (250, 84677419), (290, 72997775), (647, 32719250), (725, 29199110), (1294, 16359625), (1450, 14599555), (3235, 6543850), (3625, 5839822), (4513, 4690750), (6470, 3271925), (7250, 2919911), (9026, 2345375), (16175, 1308770), (18763, 1128250), (22565, 938150), (32350, 654385), (37526, 564125), (45130, 469075), (80875, 261754), (93815, 225650), (112825, 187630), (130877, 161750)]