21232218

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{227}}^1$

素因数の和:387

約数の個数: 64

約数和(自身を含む): 52005888

約数和(自身を除く): 30773670

約数列:

[1, 2, 3, 6, 7, 14, 17, 21, 34, 42, 51, 102, 119, 131, 227, 238, 262, 357, 393, 454, 681, 714, 786, 917, 1362, 1589, 1834, 2227, 2751, 3178, 3859, 4454, 4767, 5502, 6681, 7718, 9534, 11577, 13362, 15589, 23154, 27013, 29737, 31178, 46767, 54026, 59474, 81039, 89211, 93534, 162078, 178422, 208159, 416318, 505529, 624477, 1011058, 1248954, 1516587, 3033174, 3538703, 7077406, 10616109, 21232218]

約数ペア:

[(1, 21232218), (2, 10616109), (3, 7077406), (6, 3538703), (7, 3033174), (14, 1516587), (17, 1248954), (21, 1011058), (34, 624477), (42, 505529), (51, 416318), (102, 208159), (119, 178422), (131, 162078), (227, 93534), (238, 89211), (262, 81039), (357, 59474), (393, 54026), (454, 46767), (681, 31178), (714, 29737), (786, 27013), (917, 23154), (1362, 15589), (1589, 13362), (1834, 11577), (2227, 9534), (2751, 7718), (3178, 6681), (3859, 5502), (4454, 4767)]