19961396

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:145

約数の個数: 96

約数和(自身を含む): 46663680

約数和(自身を除く): 26702284

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 29, 31, 52, 58, 61, 62, 91, 116, 122, 124, 182, 203, 217, 244, 364, 377, 403, 406, 427, 434, 754, 793, 806, 812, 854, 868, 899, 1508, 1586, 1612, 1708, 1769, 1798, 1891, 2639, 2821, 3172, 3538, 3596, 3782, 5278, 5551, 5642, 6293, 7076, 7564, 10556, 11102, 11284, 11687, 12383, 12586, 13237, 22204, 22997, 23374, 24583, 24766, 25172, 26474, 45994, 46748, 49166, 49532, 52948, 54839, 81809, 91988, 98332, 109678, 160979, 163618, 172081, 219356, 321958, 327236, 344162, 383873, 643916, 688324, 712907, 767746, 1425814, 1535492, 2851628, 4990349, 9980698, 19961396]

約数ペア:

[(1, 19961396), (2, 9980698), (4, 4990349), (7, 2851628), (13, 1535492), (14, 1425814), (26, 767746), (28, 712907), (29, 688324), (31, 643916), (52, 383873), (58, 344162), (61, 327236), (62, 321958), (91, 219356), (116, 172081), (122, 163618), (124, 160979), (182, 109678), (203, 98332), (217, 91988), (244, 81809), (364, 54839), (377, 52948), (403, 49532), (406, 49166), (427, 46748), (434, 45994), (754, 26474), (793, 25172), (806, 24766), (812, 24583), (854, 23374), (868, 22997), (899, 22204), (1508, 13237), (1586, 12586), (1612, 12383), (1708, 11687), (1769, 11284), (1798, 11102), (1891, 10556), (2639, 7564), (2821, 7076), (3172, 6293), (3538, 5642), (3596, 5551), (3782, 5278)]