21478170

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{769}}^1$

素因数の和:812

約数の個数: 96

約数和(自身を含む): 63201600

約数和(自身を除く): 41723430

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 19, 21, 30, 35, 38, 42, 49, 57, 70, 95, 98, 105, 114, 133, 147, 190, 210, 245, 266, 285, 294, 399, 490, 570, 665, 735, 769, 798, 931, 1330, 1470, 1538, 1862, 1995, 2307, 2793, 3845, 3990, 4614, 4655, 5383, 5586, 7690, 9310, 10766, 11535, 13965, 14611, 16149, 23070, 26915, 27930, 29222, 32298, 37681, 43833, 53830, 73055, 75362, 80745, 87666, 102277, 113043, 146110, 161490, 188405, 204554, 219165, 226086, 306831, 376810, 438330, 511385, 565215, 613662, 715939, 1022770, 1130430, 1431878, 1534155, 2147817, 3068310, 3579695, 4295634, 7159390, 10739085, 21478170]

約数ペア:

[(1, 21478170), (2, 10739085), (3, 7159390), (5, 4295634), (6, 3579695), (7, 3068310), (10, 2147817), (14, 1534155), (15, 1431878), (19, 1130430), (21, 1022770), (30, 715939), (35, 613662), (38, 565215), (42, 511385), (49, 438330), (57, 376810), (70, 306831), (95, 226086), (98, 219165), (105, 204554), (114, 188405), (133, 161490), (147, 146110), (190, 113043), (210, 102277), (245, 87666), (266, 80745), (285, 75362), (294, 73055), (399, 53830), (490, 43833), (570, 37681), (665, 32298), (735, 29222), (769, 27930), (798, 26915), (931, 23070), (1330, 16149), (1470, 14611), (1538, 13965), (1862, 11535), (1995, 10766), (2307, 9310), (2793, 7690), (3845, 5586), (3990, 5383), (4614, 4655)]