21704460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{241}}^1$

素因数の和:351

約数の個数: 96

約数和(自身を含む): 65049600

約数和(自身を除く): 43345140

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 79, 95, 114, 158, 190, 228, 237, 241, 285, 316, 380, 395, 474, 482, 570, 723, 790, 948, 964, 1140, 1185, 1205, 1446, 1501, 1580, 2370, 2410, 2892, 3002, 3615, 4503, 4579, 4740, 4820, 6004, 7230, 7505, 9006, 9158, 13737, 14460, 15010, 18012, 18316, 19039, 22515, 22895, 27474, 30020, 38078, 45030, 45790, 54948, 57117, 68685, 76156, 90060, 91580, 95195, 114234, 137370, 190390, 228468, 274740, 285585, 361741, 380780, 571170, 723482, 1085223, 1142340, 1446964, 1808705, 2170446, 3617410, 4340892, 5426115, 7234820, 10852230, 21704460]

約数ペア:

[(1, 21704460), (2, 10852230), (3, 7234820), (4, 5426115), (5, 4340892), (6, 3617410), (10, 2170446), (12, 1808705), (15, 1446964), (19, 1142340), (20, 1085223), (30, 723482), (38, 571170), (57, 380780), (60, 361741), (76, 285585), (79, 274740), (95, 228468), (114, 190390), (158, 137370), (190, 114234), (228, 95195), (237, 91580), (241, 90060), (285, 76156), (316, 68685), (380, 57117), (395, 54948), (474, 45790), (482, 45030), (570, 38078), (723, 30020), (790, 27474), (948, 22895), (964, 22515), (1140, 19039), (1185, 18316), (1205, 18012), (1446, 15010), (1501, 14460), (1580, 13737), (2370, 9158), (2410, 9006), (2892, 7505), (3002, 7230), (3615, 6004), (4503, 4820), (4579, 4740)]