19973982

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:118

約数の個数: 96

約数和(自身を含む): 50964480

約数和(自身を除く): 30990498

約数列:

[1, 2, 3, 6, 7, 14, 21, 23, 29, 31, 42, 46, 58, 62, 69, 87, 93, 138, 161, 174, 186, 203, 217, 322, 406, 434, 483, 529, 609, 651, 667, 713, 899, 966, 1058, 1218, 1302, 1334, 1426, 1587, 1798, 2001, 2139, 2697, 3174, 3703, 4002, 4278, 4669, 4991, 5394, 6293, 7406, 9338, 9982, 11109, 12586, 14007, 14973, 15341, 16399, 18879, 20677, 22218, 28014, 29946, 30682, 32798, 37758, 41354, 46023, 49197, 62031, 92046, 98394, 107387, 114793, 124062, 144739, 214774, 229586, 289478, 322161, 344379, 434217, 475571, 644322, 688758, 868434, 951142, 1426713, 2853426, 3328997, 6657994, 9986991, 19973982]

約数ペア:

[(1, 19973982), (2, 9986991), (3, 6657994), (6, 3328997), (7, 2853426), (14, 1426713), (21, 951142), (23, 868434), (29, 688758), (31, 644322), (42, 475571), (46, 434217), (58, 344379), (62, 322161), (69, 289478), (87, 229586), (93, 214774), (138, 144739), (161, 124062), (174, 114793), (186, 107387), (203, 98394), (217, 92046), (322, 62031), (406, 49197), (434, 46023), (483, 41354), (529, 37758), (609, 32798), (651, 30682), (667, 29946), (713, 28014), (899, 22218), (966, 20677), (1058, 18879), (1218, 16399), (1302, 15341), (1334, 14973), (1426, 14007), (1587, 12586), (1798, 11109), (2001, 9982), (2139, 9338), (2697, 7406), (3174, 6293), (3703, 5394), (4002, 4991), (4278, 4669)]