21518056

素因数分解:

$2^3\times 7^2\times {\mathrm{17}}^1\times {\mathrm{3229}}^1$

素因数の和:3266

約数の個数: 48

約数和(自身を含む): 49709700

約数和(自身を除く): 28191644

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 49, 56, 68, 98, 119, 136, 196, 238, 392, 476, 833, 952, 1666, 3229, 3332, 6458, 6664, 12916, 22603, 25832, 45206, 54893, 90412, 109786, 158221, 180824, 219572, 316442, 384251, 439144, 632884, 768502, 1265768, 1537004, 2689757, 3074008, 5379514, 10759028, 21518056]

約数ペア:

[(1, 21518056), (2, 10759028), (4, 5379514), (7, 3074008), (8, 2689757), (14, 1537004), (17, 1265768), (28, 768502), (34, 632884), (49, 439144), (56, 384251), (68, 316442), (98, 219572), (119, 180824), (136, 158221), (196, 109786), (238, 90412), (392, 54893), (476, 45206), (833, 25832), (952, 22603), (1666, 12916), (3229, 6664), (3332, 6458)]